161103-N-XK513-033 FORT HUNTER LIGGETT, Ca. (Nov. 3, 2016) Petty Officer 1st Class Ryan Bright uses a CAT 420 backhoe to dig defensive fighting pits during a field training exercise (FTX) as Petty Officer 3rd Class Alexander Duncan stands bye as a ground guide. Bright and Duncan are with Naval Mobile Construction Battalion (NMCB) 18. NMCB-18 is participating in this FTX to maintain deployment readiness. (U.S. Navy Photo By Petty Officer 2nd Class Ian Carver/Released)